Developer news

 At the STM32 Summit last December, ST innovation leaders announced the groundbreaking AI-accelerated MCU, the STM32N6, presenting inspiring customer use cases, and sharing the stage with our partner Edge Impulse. They also explored our strategic collaborations with Qualcomm Technologies, Inc, and Amazon Sidewalk in the field of wireless applications.Following this live keynote, we hosted two tech dives focusing on edge AI solutions with the STM32N6, which are still available on demand. The STM32 Summit triggered significant interest, which is why we continued answering your questions after the event was over. You will find all the answers to your questions consolidated in this document What do you need to know about the STM32N6? Let’s summarize the main takeaways. 1. An advanced AI microcontroller with an NPUThe STM32N6 microcontroller is built on a powerful Arm® Cortex®-M55 processor clocked at 800 MHz, the highest STM32 core frequency yet. It features an ST proprietary neural proces

 Over the past decade, cybersecurity regulations have become increasingly stringent, especially in specific industries like aviation, medical, and automotive. The new European law Cyber Resilience Act (CRA), published in December 2024 and set to take effect in December 2027, will extend these regulations to all remaining application fields. A critical aspect of these regulations is the tracking of vulnerabilities. In this regard, a major milestone is the accurate tracing of the software bill of materials (SBOM) for all components of a product or system, which is integral to the DevSecOps process. STM32Cube ecosystem is providing, since long, the SBOMs in all its deliverables. However, until now, such a document was made to be readable and printable by humans. To meet these demands, ST has partnered with Black Duck® to integrate machine-readable SBOMs into the STM32 software ecosystem. This collaboration leverages Black Duck’s software composition analysis tools to streamline the securi

We’re pleased to announce OpenSTLinux 6.1, now with M33-TD support, enabling you to leverage the Cortex®-M33 core as a trusted domain (TD) boot processor. This release provides a unified ecosystem and contributes to the 5-year maintenance commitment for all STM32 MPUs in production, ensuring your products are built on a stable, long-term software foundation. What’s new? 1) Offload early boot processes to Cortex®-M33Reduce startup load on Cortex®-A35 cores by delegating initial boot processes and security checks to the Cortex®-M33. Enables faster, more efficient boot sequences and lower power consumption.  2) Improved boot time & system efficiencyBoot critical early tasks on Cortex-M33 before going on with Cortex®-A35 start up. Optimizes overall system startup time and resource usage.  3) Enhanced security through isolationKeep secure services on the Cortex-M33 isolated trusted domain. This isolation strengthens the protection of secure boot applications against attacks.  4) Indepen

This preview allows you to explore the new HAL2, providing valuable insights into the improvements we are making to simplify and optimize your development experience.  We highly encourage you to share your feedback through our dedicated channels. Your input is essential to help us refine HAL2 and ensure it meets your needs before its official release.  How to access the preview The preview version of STM32Cube HAL2 for the STM32U5 series is available on the GitHub repository STM32CubeU5-V2-Preview.  What is coming with the updated HAL2 HAL2 expands the features of the previous HAL to enhance developer journey. It offers improvements in the following areas:  Performance and footprint Portability across the STM32 portfolio Integration with multiple RTOS API user-friendliness and usability    For instance, these improvements include:  The split of the initialization API into two for greater flexibility: one for initialization and one for configuration The added feature of HAL drivers, whi

STMicroelectronics has unveiled STPay-Topaz-2, its next-generation contactless payment card system-on-chip (SoC), offering more flexibility to support a wider variety of payment brands and ease stock management for customers. The new auto-tuning feature ensures reader-independent connection quality for an enhanced user experience, while advanced cryptography strengthens security and prepares the platform for upcoming, stronger industry standards. ST has already supplied more than three billion STPay ready-to-use solutions to the payment market. STPay-Topaz-2 now introduces a specific feature which allows preloading the greatest quantity of payment applets per orderable part number in the market, which simplifies inventory management for card manufacturers. This innovation includes a unique product versioning which embeds the latest and most popular payment applets worldwide, including both VSDC2.8.1g1 and 2.9.2 Visa applets. “Contactless payment has been a huge hit with consumers and t

The new VIPer11B off-line high-voltage converters make tiny, efficient, and low-cost power supplies for applications up to 8W, including lighting, smart-home equipment, appliances, and smart meters. ST’s VIPer11B converters cut the bill of materials through extensive feature integration to simplify circuit design and save external components. The 800V avalanche-rugged MOSFET requires only small snubbing components and a built-in senseFET provides almost lossless current sensing with no additional resistors. High-voltage startup circuitry is on-chip, requiring only an external capacitor for the Vcc supply, and the frequency-jittered oscillator minimizes any external filtering needed to meet electromagnetic compatibility (EMC) regulations. Also, being housed in a compact SSOP10 package, the converters deliver power where space is tight. This can be especially valuable in applications that are subject to rigidly defined form factors, such as LED-lighting drivers and smart bulbs. The conve

These are the first STM32 MCUs based on near-threshold technology, delivering a breakthrough improvement in battery life. With near-threshold technology, the STM32U3 MCUs reduce the active consumption down to 9.5 μA/MHz, resulting in significant longer battery life for any application. Powered by an Arm® Cortex®-M33 core running at 96 MHz, it delivers market-leading energy efficiency—up to 5 times better than previous generations, with 117 CoreMark/mW. Flexible memory and packagingWith flexible memory options (256 Kbytes of RAM & up to 1 Mbytes of dual-bank flash) and a wide range of package choices, STM32U3 enables you to build compact, power-optimized devices tailored to your needs. Enhanced security for mission-critical applicationsSecurity is a core focus of the STM32U3, targeting PSA Certified Level 3 and SESIP Level 3 certifications to provide robust protection for sensitive and mission-critical systems. Its dual-bank flash architecture supports seamless firmware updates with

DCP0606Y automotive step-down converters let designers build extremely compact and efficient step-down power supplies to deliver 6A maximum output current at a voltage as low as 0.6V. The converters are conceived for applications such as telematics, heads-up displays, infotainment, multimedia and camera digital core power, ADAS power supplies, and others that require high-current low-voltage post regulation. An evaluation board, STEVAL-0606YADJ, is available now to simplify getting started and accelerate development. With high-side and low-side MOSFETs, gate drivers, control logic, protection, and soft-start circuitry integrated in the DCP0606Y’s 3mm x 2mm package, the design is complete with minimal additional external components. A single resistor sets the switching frequency, which can be 1.8MHz, 2.25MHz, 3.5MHz, or 4MHz thereby permitting low capacitor and inductor values. Internal frequency dithering attenuates EMI peaks and the DCP0606Y allows further optimization by providing lo

STMicroelectronics’ L9800 8-channel automotive low-side driver is ISO 26262 compliant and housed in a compact, leadless outline that saves space in body-control modules, HVAC and climate controls, and power-domain controls. The L9800 outputs can drive resistive, capacitive, or inductive loads like relays, solenoids, and LEDs. With continuous real-time diagnostics and open-circuit, short-circuit, overcurrent, and overtemperature protection per channel, the L9800 enhances vehicle reliability and eases system-level ISO 26262 certification up to ASIL-B. The diagnostic signals are available at the L9800’s SPI port, which also provides access to the driver’s internal configuration registers for device set-up. The eight output channels can be driven via the SPI interface or alternatively using two dedicated parallel inputs that can be mapped to selected outputs. These pins also allow emergency hardware control of two default channels even if the digital supply voltage is not available. This l

LEOPOL1 point-of-load step-down converter for Low Earth Orbit (LEO) deployments meets the needs of equipment developers targeting the New Space market, now expanding throughout North America, Asia, and Europe. The emerging New Space industry, driven by private-sector companies, is enabling new services such as communication and earth observation, delivered from satellites built and launched cost-effectively into low earth orbits. The LEOPOL1 is the latest in ST’s LEO series of power, analog, and logic ICs developed for low cost of ownership with quality assurance and radiation hardness optimized for LEO satellites, leveraging automotive best practices including statistical process control. The LEOPOL1 is radiation hardened by design to withstand the hazards encountered in LEO altitudes, leveraging ST’s space-proven BCD6-SOI (Silicon-On-Insulator) technology. Key hardness parameters include 50 krad(Si) total ionizing dose (TID) and 3.1011 proton/cm2 total non-ionizing dose (TNID). Singl

 STGWA30IH160DF2 IGBT combines a breakdown-voltage rating of 1600V and high thermal performance with efficiency in soft-switching topologies and easy paralleling in high-power applications, including induction heaters and cookers, microwave ovens, and rice cookers. With maximum junction temperature of 175°C and low thermal resistance ensuring efficient dissipation, the STGWA30IH160DF2 has a current rating of 30A and ensures long-term reliability in challenging environments. Extending the STPOWER portfolio, this is the first 1600V IGBT in ST’s new IH2-generation. The devices leverage advanced trench gate field-stop (TGFS) technology to combine its high breakdown-voltage capability with low saturation voltage (VCEsat) to minimize conduction losses. While the STGWA30IH160DF2 has VCEsat of just 1.77V (typical, at rated current), TGFS technology also minimizes tail current resulting in low turn-off energy. In addition, the anti-parallel diode has a low forward voltage and soft recovery that

We are pleased to announce the release of TouchGFX 4.25.0, a significant update packed with new core functionalities and numerous bug fixes to enhance your development experience. Here’s a glimpse of what’s new:LTDC-driven display: emulated framebufferThis major feature introduces memory savings by using the MCU’s memory instead of external RAM. By allocating memory for only a subregion of the display and synchronizing between the LCD controller and graphics framework, full screen storage is unnecessary. This is ideal for static UIs but may require adjustments for animations to avoid screen tearing. Check out the blog article and the dedicated page in our documentation. Bitmap font compressionTouchGFX 4.25.0 introduces bitmap font compression, which can drastically reduce flash usage for applications with extensive font usage. You can enable 4Bpp bitmap font compression in the Designer under the Typography tab in the “Text” menu and configure the “Compressed Font Cache Size” in the Tex

This ST67W611M1 module is designed to simplify the deployment of IoT solutions enhanced by edge AI and aims to drive wireless innovation and improve design scalability for software developers. Key benefits Seamless integration with the STM32Cube ecosystemSimplify development process with the STM32Cube software expansion package offering intuitive APIs and ready-to-use demo applications.  Flexible configuration optionsSelect from three configuration options—embedded antenna, RF connector, and RF pin output—to best suit project needs, enabling easy addition of wireless connectivity to existing applications.  Efficient developmentLeverage 4 Mbytes of flash with OTA updates for easy firmware management and reduce design complexity with integrated components like balun, PA, LNA, and switch.  Future-proof connectivityIntegrate Wi-Fi 6 and Bluetooth® LE into your applications and anticipate future enhancements with Matter protocol and Thread features, scheduled for software updates in Q3 and

STMicroelectronics has revealed new class-D automotive audio amplifiers for smart-cockpit applications, engineered for tiny overall dimensions and with a digital input that simplifies circuit design. The new HFDA80D and HFDA90D extend ST’s family of high-frequency automotive amplifiers, complementing the HFA80A analog-input IC. All the devices operate at a switching frequency of 2MHz to save PCB space and lower the bill of materials. Also containing architectural innovations that minimize the package pin count and external components, the ICs deliver four 27W output channels from a 7mm x 7mm exposed-pad-up LQFP48 package. With their digital inputs, the HFDA80D and HFDA90D further ease integration, simplify design, and save extra space by eliminating analog conversion. The devices increase audio clarity and elevate efficiency above the typical value for this type of device. Configured and fully addressable through their I2C bus interface, the HFDA80D and HFDA90D deliver high output powe

STMicroelectronics has introduced the STDRIVE102H and STDRIVE102BH, beginning a new generation of integrated gate drivers for three-phase brushless motors to boost performance, efficiency, and economy in consumer and industrial equipment. With an operating-voltage range of 6V to 50V, the STDRIVE102H for single-shunt control and STDRIVE102BH for three-shunt control are easily configured through two analog pins. A simple resistor divider can program the gate-drive current supplied to the external MOSFETs and lets designers optimize the power-stage performance, including limiting the switching slew rate, without using gate resistors. With a low-current stand-by mode that effectively preserves battery performance, the new drivers are suited to cordless power tools and appliances, e-bikes, and mobile robots, as well as industrial drives. The drivers integrate charge-pump circuitry capable of sustaining unlimited on-time of the high-side MOSFETs, which simplifies the design of applications t

The L9026 8-channel driver from STMicroelectronics has six configurable high-side/low-side outputs and two high-side outputs, delivering a flexible solution in a choice of compact outlines for space-constrained applications. With a limp-home mode in case of controller failure and two extra input pins for failsafe operation, the L9026 enhances safety and reliability. Capable of driving multiple relays, solenoids, LEDs, and resistive loads in equipment such as body electronics, climate controls, and fuel-injection systems, the L9026 can handle resistive, capacitive, and inductive loads. The device has an SPI interface with registers for storing the device configuration as well as internal mapping and PWM behavior. The limp-home mode, activated according to register settings OR-ed with the external failsafe pins, allows two drivers to remain operational after detection of a fault or supply undervoltage. With advanced diagnostic and protection features for each channel, the L9026 eases ISO

STMicroelectronics has released a set of antenna-matching companion chips for STM32WL33 wireless microcontrollers (MCUs) to simplify the development of IoT, smart-metering, and remote-monitoring applications. The new MLPF-WL-01D3/02D3/04D3  ICs combine impedance matching and harmonic filtering on a single glass substrate to optimize the main radio’s RF performance, leveraging proprietary integrated passive device (IPD) technology. Precision engineered and housed in an ultra-compact package, the highly integrated devices ensure right-first-time design while saving development time, bill-of-materials costs, and board space. Integrating antenna protection, the new devices substantially simplify the RF connection to the MCU. In addition to ensuring optimal performance, integrated matching and filtering also increases reliability and reduces overall cost by eliminating the need to combine multiple discrete components. In total, there will be seven variants, letting designers optimize for ra

Three new microcontrollers (MCUs) are joining the STM32C0 series, giving designers more flexibility with options including greater memory density, extended interfaces, and CAN FD for enhanced communication capability. The new MCUs now joining the cost-efficient series include the STM32C051, with up to 64 KByte of flash for applications that need more storage than STM32C031 MCUs can provide. Additional features include extra interfaces and more user I/O channels in packages with up to 48 pins. Also new, the STM32C091 and STM32C092 extend flash density up to 256 KByte in packages up to 64 pins, adding a CAN FD interface in the STM32C092. With CAN FD on-chip, users can trim the BOM and simplify the hardware design of industrial communication and networking devices, leveraging the upgraded protocol’s flexibility, speed, and payload capacity.  "The STM32C0 series offers great flexibility as a cost-conscious line in the STM32 family, with memory ranging from 32 KByte to 256 KByte of flash an

The latest STDRIVEG610 and STDRIVEG611 give designers two options to manage GaN devices in power conversion and motion applications for greater efficiency, power density and ruggedness in consumer and industrial applications. The STDRIVEG610 addresses applications requiring an extremely fast 300ns start-up time which is an important parameter for converter topologies like LLC or ACF ensuring accurate controlled turn-off intervals in burst mode. The STDRIVEG611 is tailored for hard switching in motion-control applications with additional protections features like high-side UVLO and smart shut down overcurrent protection. Both devices are suitable for hard-switching and soft-switching topologies with built-in interlocking to prevent cross conduction. The STDRIVEG610 elevates the performance of power adapters, chargers, and power-factor correction (PFC) circuits. The STDRIVEG611 saves space as well as boosting efficiency and reliability in drives for home appliances, pumps and compressors

STMicroelectronics’ STGAP4S galvanically isolated automotive gate driver for SiC MOSFETs and IGBTs gives flexibility to control inverters of different power ratings featuring programmable protections and rich diagnostics that allow ISO 26262 ASIL D qualification. With analog-digital converter (ADC) and flyback controller integrated, the STGAP4S provides a highly featured and functional-safety qualified driver for scalable EV-powertrain designs. The STGAP4S owes its flexibility to the output circuit that allows connecting the high-voltage power stage to an external MOSFET’s push-pull buffer to scale the gate-current capability. This architecture lets engineers leverage the STGAP4S and its wide features to control inverters with different power ratings, up to high-power designs with multiple power switches in parallel. The driver can generate up to tens of amperes of gate-drive current with very small MOSFETs and handles a maximum operating voltage of 1200V. Among the driver’s key featur

ST is one of the two first companies to achieve EUCC certification in France and Europe for its ST54 product family, an all-in-one NFC controller, eSIM, and secure element for connected devices. This milestone underscores ST's commitment to providing state-of-the-art security solutions that meet the stringent cybersecurity regulations now required in Europe. With the adoption of the EU Cybersecurity Act (CSA), the European Union (EU) has introduced a new security certification scheme called "EUCC" (EU Common Criteria). The EUCC scheme aims to harmonize cybersecurity standards across all 27 member states, replacing the previous SOG-IS scheme. The EUCC will become an essential certification reference for upcoming European regulations such as the Cyber Resilience Act (CRA) and the cybersecurity update for the Radio Equipment Directive (RED). Starting in 2026, developers of connected products sold in the EU will leverage this new "EUCC" scheme, which serves as the first reference for highe

ST introduces an industry-first autotuning feature on the ST31R480 secure microcontroller. Software and OS developers can now create fully interoperable smartcards while automatically optimizing energy harvesting. Interoperability meets energy harvestingThe ST31R480 now comes with an innovative smart autotuning feature. This secure MCU automatically adjusts itself to match the frequency of the reader while optimizing energy harvesting in various field conditions. This feature addresses two significant challenges: in high field environments, the chip limits the loading effect behavior to prevent overloading, while in low field environments, it maximizes energy harvesting to ensure efficient operation. Previously, developers had to compromise between these two behaviors. This smart autotuning feature delivers optimal performance in both scenarios. Simplifying the development process for software engineersThe ST31R480's smart autotuning capability offers numerous advantages for software a

STMicroelectronics’ IIS2DULPX industrial MEMS accelerometer combines machine learning, power saving, and capability to operate at high-temperature, facilitating intensive sensorization for smarter, data-driven operations and decision making in asset tracking, robotics, and factory automation, as well as industrial-safety equipment and healthcare devices. With in-sensor AI to relieve the host processor and automatic self-configuration to optimize power consumption, the IIS2DULPX lets equipment makers build maintenance-free, battery-powered smart sensor nodes in convenient form factors. “Our new IIS2DULPX accelerometer uniquely combines edge processing with ultra-low-power consumption and extended operating temperature range for the next generation of smart industrial sensors,” said Tarik Souibes, MEMS sub-group marketing director, STMicroelectronics. “With their on-chip intelligence, these accelerometers operate and adapt in real time to context, giving flexibility to adopt a determinis

STMicroelectronics has introduced a series of serial EEPROMs that contain a unique 128-bit read-only ID (UID) to meet market requirements for product recognition, tracking, and repairability. In addition to conventional EEPROM user-memory space for parameter storage and data logging, the read-only UID is preprogrammed in the ST factory and permanently locked. This lets OEMs quickly and easily take advantage of the UID for basic product identification and clone detection as an alternative to an entry-level secure element. The UID can also support versioning and upgrade control. With memory sizes from 32 Kbit to 2 Mbit, each device retains its factory-programmed identity throughout the end-product life cycle, from sourcing and manufacture through to field deployment, maintenance, and disposal. The UID provides seamless traceability, enabling reliability analysis and simplifying equipment re- and repair. Initially available in 64 Kbit and 128 Kbit, the M24xxx-U series are based on ST’s pr

STMicroelectronics has announced mass-market availability of new STM32MP23 general-purpose microprocessors (MPUs), combining high-temperature operation up to 125°C with the speed and efficiency of dual Arm® Cortex®-A35 cores, for superior performance and ruggedness in industrial and Internet-of-Things (IoT) edge compute, advanced HMI, and machine-learning applications. Joining the STM32MP25 series launched in 2024, the new MPUs contain dual 1.5GHz Arm Cortex-A35 cores, a 400MHz Cortex-M33 for real-time applications, and a neural network accelerator with 0.6 TOPS performance. There is also a 3D graphics processor, H.264 decoder, MIPI CSI-2 camera interface with raw data support, dual Gigabit Ethernet ports with time-sensitive networking (TSN), and two CAN-FD interfaces. Combining diverse processing resources and optimized on-chip features, the STM32MP23 series fulfills numerous sensing, processing, and data-handling roles throughout smart factories, smart cities, and smart homes. With t